// 简单的样式重置和基本布局
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.qie {
    width: 80%;
    margin: 0 auto;
}

.lan {
    display: flex;
    list-style: none;
    background-color: #f4f4f4;

   .lan_ {
        padding: 10px 20px;
        cursor: pointer;
        border-right: 1px solid #ccc;

        &:last-child {
            border-right: none;
        }

        &:hover {
            background-color: #e0e0e0;
        }
    }
}

.lan_kongtiao {
    padding: 20px;
}

.nei {
    div {
        margin-bottom: 20px;
        border: 1px solid #ccc;
        padding: 10px;
        display: flex;
        align-items: center;
    }

    img {
        width: 90px;
        height: 110px;
        margin-right: 10px;
    }
}

.beijing {
    background-color: #ccc;
}    